Hi flashedarling. Welcome to the Zone!
I know it seems wastefull to discard the old table and base, but there is no cheaper way to do it.
You can actually buy every X1 part and screw from LMS--But it might cost you a lot more that way. Best bet IMO is to combine a harbor frieght X1 sale price with a 15 or 20 percent off coupon, and then buy the extended tables and belt kit from LMS.
By the time you are finished though, you almost could have bought an X3 from Grizzly:
Of course, you COULD price it out and see what it would cost.